MATERIAL  Premium quality Type 304 nickel bearing stainless steel  FEATURES  18 gauge undermount Hand crafted with reserved-radius corners Heavier than 16 gauge pressed sink Sound absorbent coating & padding Drain openings: 3 ½” Drain placement: offset towards back Mounting hardware included Cutout template included Limited lifetime warranty Complies with ASME A 112.19.3-2008/CSA B45.4-08 ADA compliance (See recommended ADA Installation below)  OPTIONAL ACCESSORIES  Basket Strainer: S9900  Welcome to Wells where water meets art. From premium stainless steel kitchen sinks in classic designs, to unique vitreous china lavatories and shimmering art glass vessels, you will find the perfect expression of your artistic vision in our extensive lines. Wells is centrally located in Chicago, Illinois for convenient shipping across the country. Included in each order is our commitment to quality, value and service.